ADT4-6+

Balun Overview

The ADT4-6+ is a surface-mount RF balun transformer manufactured by Mini-Circuits. It operates within a frequency range of 7 kHz to 250 MHz and provides a 1:4 impedance transformation ratio, typically converting between 50Ω and 12.5Ω ports. The component utilizes a flat lead SMD package for automated assembly. Key electrical specifications include an insertion loss of approximately 1.27 dB and a return loss of 21 dB at center frequencies. It supports an RF power handling capacity of 0.25W and functions reliably across an operating temperature range of -20°C to 85°C.

Balun Feature Summary

• Provides balanced-to-unbalanced signal conversion with a 1:4 impedance ratio
• Operates over a wide bandwidth from 7 kHz to 250 MHz
• Designed for surface-mount technology using flat lead packaging

Balun Applications

• RF front-end circuits requiring impedance matching
• Balanced antenna interface connections
• Signal distribution networks in communication systems

Balun Procurement Notes

Verify the specific ordering suffix to ensure compliance with RoHS standards and lead configuration requirements. Confirm that the selected variant matches the required thermal performance for the intended application environment. Cross-reference the manufacturer's latest datasheet to validate current availability and packaging options before finalizing procurement orders.

Balun Selection Notes

Select this component when a compact solution is needed for low-frequency RF balancing up to 250 MHz. Ensure the circuit design accommodates the 1:4 impedance transformation ratio to maintain signal integrity. Verify that the power handling limits are sufficient for the system's maximum output levels without causing distortion or thermal issues.

Balun Part Context

This part belongs to Mini-Circuits' ADT series of broadband transformers. These components are engineered for general-purpose RF applications where size constraints and broad frequency coverage are critical. The series offers various impedance ratios to suit different circuit topologies.

Balun Replacement Considerations

Direct substitutes may include other Mini-Circuits models such as the ADT4-6T or ADT4-6WT, provided they match the required frequency range and impedance ratio. Verify pinout compatibility and package dimensions before swapping.